With the kind of guarantees that Haskell's type system provides, I'd imagine that wouldn't be much of an issue. It's certainly an issue in CoffeeScript because

With the kind of guarantees that Haskell's type system provides, I'd imagine that wouldn't be much of an issue. It's certainly an issue in CoffeeScript because that language has barely any more safety than JavaScript. Once the Haskell were compiled, the generated JavaScript would be necessary to read in the same way that the generated object code is when using GHC - that is, essentially never. I never use the debugger in Haskell, anyway, and I don't think most do. The type system and a strong suite of tests will suffice for most things. Although I'd be concerned about laziness, especially in a language without Haskell's GC.